Update links in header.asciidoc to GitHub pages

Author: hohwille

website/components/header/header.asciidoc

@@ -5,8 +5,8 @@
 [.website-navbar]
 // this links need to be set as with a leading # and the <<link,name>> syntax in order to work properly
 // see also https://github.com/asciidoctor/asciidoctor/issues/417?source=cc#issuecomment-471338264
-* image:/images/Logo_devonfw.svg[logo, link="https://devonfw.com/"]
-* https://devonfw.com/website/pages/learning/[Tutorials]
+* image:/images/Logo_devonfw.svg[logo, link="https://devonfw.github.io/"]
+* https://devonfw.github.io/website/pages/learning/[Tutorials]
 * <</website/pages/solutions/index.html#,Solutions>>
 * <</website/pages/docs/master.html#,Docs>>